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Emptying fuel tank if more than 3/4 full, engine codes CDLG, CAVB, CAVC, CAVD, CBZA, CBZB, CTHD, CTKA — VW

Emptying fuel tank if more than 3/4 full, engine codes CDLG, CAVB, CAVC, CAVD, CBZA, CBZB, CTHD, CTKA on VW: 11 steps, engines CAVB, CAVC, CAVD, CBZA.

Workshop procedure for VW — the exact step sequence and torque figures, straight from real workshop data.

11 steps 8 engine codes

🧭 Before you start

Fits: VW Golf VI (5K, 2008–2013); platform code 521

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  • A mark (arrow) at distance (a) = 1180 mm from end of extraction hose.
  • A ball valve (2) is located at the bottom of the filler neck in the fuel tank (1); it must not be damaged by the extraction hose (3). Therefore push hose into filler neck only as far as marking (arrow).
  • When no more fuel is extracted, the tank is emptied just enough for the sender flange to be opened without danger. The tank may be removed while containing remaining fuel.Draining fuel tank completely

🔧 Engine codes this applies to

📋 Procedure

  1. ⚠ Secure earth wire of fuel extractor to a bare metal part of the body.To extract E 85 fuel, use only fuel extractorVAS 5190 A! — Observe safety precautions .
  2. Observe rules for cleanliness .
  3. Remove cone piece (2) from shaft (1) of fuel extractorVAS 5190.
  4. A mark (arrow) at distance (a) = 1180 mm from end of extraction hose.
  5. Use insulating tape for this.
CAVB? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Open tank flap.
  2. Remove cap (arrow) from fuel filler neck.
  3. Screw shaft (1) of fuel extractorVAS 5190 onto fuel tank filler neck.
  4. Push extraction hose into fuel tank until marking on hose (arrow) coincides with shaft end. [Note: A ball valve (2) is located at the bottom of the filler neck in the fuel tank (1); it must not be damaged by the extraction hose (3). Therefore push hose into filler neck only as far as marking (arrow).]
  5. Drain fuel tank via filler neck as far as possible.
  6. Pull extraction hose out carefully. [Note: When no more fuel is extracted, the tank is emptied just enough for the sender flange to be opened without danger. The tank may be removed while containing remaining fuel.Draining fuel tank completely]

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TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.

The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.

Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.

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Workshop data on this page last updated 20 Sep 2026.